89 



Cup about an inch in diameter, softly tawny, or fulvous villous ; petioles usually tawny or 



fulvous pubescent or villous ; the nerves curved, Q. veluHna. 



Iftifs ovoid, exserted. 



Cup about an inch across, softly tawny or fulvous villous ; petioles smooth ; leaves somewhat 

 glaucous beneath, the nerves rather straight, Q. semiserrata. 



Cup only ^ an inch across, greyish velvety ; petioles slender, glabrous ; leaves somewhat 

 rugate, glaucous beneath, Q- Brandmana. 



Cup more than an inch wide and deep, greyish-velvety ; leaves smooth, one-co- 

 loured, , Q. mespilifolia. 



CASUARINE^. 

 %^ Conspectus of genera. 



Casvakina. Only genns. 



CASUARINAi Only species, C. equisetifoHa. 



CONIFERJE. 



Conspectus of genera. 



Females in cones, consisting of numerous imbricate woody or coriaceous scales. Orary without a 



surrounding receptacle. 

 PunJS. Cones dry, the scales free, usually woody. Leaves acicular, solitary or by 2-5, in a short sheath. 



Females solitary, the ovary and nut surrounded by a single or doable often fleshy receptacle, enclosed 



in the enlarged scales and often resembling a fleshy or dry drupe. 

 Dacrtdium. Bracts in males dilated at apex. Fruits seated within the bracts and surrounded by the cater 



loose somewhat fleshy or coriaceous involucre- Leaves usually dimorphous, scale-like and acerose, 

 PoDOCAEPUS. Bracts in males not or little dilated. Fruit fleshy, iuversed, seated on a fleshy thick receptacle, 



lieaves many or 1-nerved, often broad. 



PINUS. 



Lieaves by 3 in the sheath ; opercle of scales not zonate, P. Kasya. 



Leaves by pairs in the sheath ; opercle zonate, , P. Merkusii. 



DACRYDIUM. Only species, D. elatum. 



PODOCARPUS 



* Leaves opposite or nearly so, many nerved. 



Leaves oblong-lanceolate, glabrous, P. lati/oUa. 



* * Leaves scattered, 1-nervcd. 



Glabrous ; leaves linear to linear-lanceolate, P. bracteata. 



GNETACE^. 

 Conspectus of genera. 

 Gketuu. Only genua. 



6NETUM. 



vary and fruits sessile ; erect shrub or treelet ...O. gnemon. 



CYCADEJE. 

 Conspectus of genera. 

 Ctcas. Only genus. 



CYCAS. 



Fruits densely tomentose, , , , , ,..C. revoluta. 



" * Fruits, at least when ripe, glabrous. 



O Trunk 6 to 30 ft. high, epigoeous. Ovules ftom 2 to 5 on each side of the frond- 

 stalk. 



